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Share Based Compensation Plans - Additional Information (Detail) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2023 shares | Dec. 31, 2022 CAD ($) shares | Dec. 31, 2021 CAD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Option vesting period |  | 3 years |
Option expiration term |  | 7 years |
Net earnings (loss) | $ |  | $ (34,293) | $ (177,386)
Number of other equity instruments exercised or vested in share-based payment arrangement |  | 189,964 |
Number Of Deferred Share Units Outstanding |  | 1,470 | 1,470
Restricted Share Units (RSUs) [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Shares granted to eligible employees vest term |  | 3 years |
Number of other equity instruments exercised or vested in share-based payment arrangement |  | 266,876 | 216,820
Performance Share Units (PSUs) [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Shares granted to eligible employees vest term |  | 3 years |
Number of other equity instruments exercised or vested in share-based payment arrangement |  | 143,659 | 40,515
Executive Performance Share Units [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Share unit vesting period |  | 3 years |
Net earnings (loss) | $ |  | $ 4,000 | $ 18,000
Number of other equity instruments exercised or vested in share-based payment arrangement |  | 189,964 | 96,355
Share based compensation number of shares vested |  | 263,900 |
Restricted Share Units and Performance Share Units [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Share based compensation number of shares vested | 230,336 |  |

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